Chapter 2, Problem 12.1E

Given that y = ax³ + 7, which of the following are correct Java statements for this equation?

1. 1. int y = a * x * x * x + 7;
2. 2. int y = a * x * x * (x + 7);
3. 3. int y = (a * x) * x * (x + 7);
4. 4. int y = (a * x) * x * x + 7;
5. 5. int y = a * (x * x * x) + 7;